Battery charger



FIG. 1 is a perspective view of a battery charger showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side view thereof, the left side view thereof being a mirror image;

FIG. 7 is a perspective view thereof showing a state with a cover open;

FIG. 8 is a front elevation view thereof showing a state with a cover open;

FIG. 9 is a rear elevation view thereof showing a state with a cover open; and,

FIG. 10 is a perspective view for reference showing a state with a cover open and batteries being fitted therein.

The broken lines are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

The ornamental design for a battery charger, as shown and described. 